Heat-regulating device.



N0. 629,375. 7 Patented July 25, I899.

F. LAMPLUUGH.

HEAT BEGUL'ATING DEVICE.

(A ppiication filed Feb 28. 1899.)

(No Model.) 5 Sheets8heet I.

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Patgnted July 25, I899.

I". LAHPLUUGH. HEAT REGULATlNG DEVICE.

(Application filed tab. 28, 1899.

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No. 629,375. Pa tented July 25, I899.

r. LAMPLOUBH.

HEAT REGULATING DEVICE.

A iimionmea Feb. 28, 1899.)

(No Model.) 5 Sheets-Shoot 3.

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F. LAMPLOUGH. HEAT Ream-Ame DEVICE Patanjed July 25, I899.

(Application filed. Feb. 28, 1899.)

' 5 Sheets-Sheet 4.

(No Merlot.)

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No. 629,375. Patented July 25, I899.

F; LAMPLOUGH.

HEAT BEGULATINE DEVICE.

(Appiiu-tion mad lob. 28 1899.)

5 Shank-Sheet 5.

(lo Iodel.)

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V UNITED STATES PATENT OFFicE.

FREDERlGK LAMPhOUGll, OF LONDON, ENGLAND.

H EAT R EG U LATi N G EVIC E i SPECIFICATION forming part of Letters Patent No. 629,375, dated Ju1y25, is'ee.

hpplication filed February 28, 1899, Serial No. 70?,241. (No model.) i

.new and useful Heat-Regulating Device,

which device can alsobe used as a steam-trap and steam-radiator, of which the following is a full, clear, and exact description, and for which I have made application for British patent, No. 26,905,dated December 20, 1898.

The invention has forits object an improved construction and arrangement of apparatus which shall be very sensitive to ditterenc'es of temperature and capable of regulating the.

supply of steam or gas to various apparatuses and which can be utilized as a steam-trap and' steam-radiator.

I will describe my invention with the aid of theaccompanying drawings, in which- Figure 1 is an elevation of a heat-regulating device capable of regulating the supply of steam or gas to various classes of apparatus and which can be used as a steam-trap and as a heat-regulated steam-radiator. Fig. 2 is an elevation of the same, partly in section and drawn to an enlarged scale. Fig. 3 is a plan ofvthe lower parts of Fig. 2. Fig.4; is a cross-section of the loop portion of expansion-rod. Fig. 5 is a sectional elevation of parts, showing a modification. partly-sectional elevation showing a modification of the device of Fig. 1. Fig. 7 is an elevation showing the device of Fig. 1 applied in the liquid-container of an incubator, said container being shown in section.

In all the figures like parts are indicated by similar letters of reference.

In carrying my invention into efiect according to the arrangement shownat Figs. 1 to 4:

I employ a casting or valve-body 0., having at one end an in1et-opening a and at the other 7 end an outlet-opening a? for the steam or gas used for heating purposes. Close to the inlet a. ma chamber a containing a screw-stop or inlet-valve a and close to the outlet of is a chamber a containing an' outlet-valve or valve-seat a, capable of ready regulation by means of a screwed rod a supporting it and extending through the valve -body a. This screwed rod is capable of being turned bya key applied to the outer end thereof and Fig. 6 is a of being fixed in its adjusted position bya lock-nut a The screw=stop or inlet-valve a has its stem a passed through a stuffing-box a to the exterior, so that by means of thehandwheela it can be readily adjusted or so that the inletpassage can be completely closed when desired.

Above the inlet-chamber a is rigidly fixed to the valve-body one leg I; of a looped hollow -meta-l rod b b b and to the outlet-chamber 0.

is connected the other leg 12 of said hollow rod, which leg 19 passes through and iscapabio of motion in a stufing-box 00 on said outlet-chamber of. The inner end 5 of the leg 12 is of hard metal and servesas a valve-seat or valve to act in combination with the out- :let-valve or valve-seat M.

The legs 5 b of. the hollow rod extend any suitable distance from the valve-bodya, and the loop-shaped part b is flattened, as shown at Fig. 4, to enable it to act as a spring, while at the same time it afiords free communicatiori from the leg b to the leg 11 of the hollow rod. i

' At or close to the junction of the loop shapfed portion 1) with the legs 19 b are brazed trunnion-rings c, and on the trunnions c are mounted a pair of cross-bars d, forming a lever. At a point (1 on said lever d between the two legs 11 b of the hollow rod and preferably nearer the leg is connected one end of a rod 'e,.the*other end of which is connected to the valve-body a-. g I

- The looped hollow rod Z) b b? is made of an alloyor metal that will give. good expansive properties, such as tin and copper combined or zinc and copper, the ordinary commercial brass, German silver, or coppertubes being suitablefor the purpose. The rod e is formed of a metal that has poor expansive property when subjected to heat-preferably iron or steel. I p

The apparatus is equallyapplicableto gasovens as to boiling-vats; but in'the'former case the looped hollow red I) b b may be of much lighter material.

When the apparatus above described is ,used as a heat-radiator, it is, for example,

laid lengthwise under the seat of a railway-.

carriage, and by adj usting'the outlet-valve a by its regulating-screw a practically any range of temperature up to the maximum can be maintained. In this case the legs I) b may be constructed, as shown at 11*, Fig. 6, as in ordinary steam-radiators.

In the modification shown at Fig. 5 the hollow rod b b b hereinbefore described is replaced by a solid rod of like shape, but of smaller diameter, and in this case communication is made direct from the inlet-chamber c to the outlet-chamber a by a connecting passage a, made in the valve-body a. In this case the seat of the inlet-valve a is formed in a web a. The valve 66 is attached to the screwed rod a and passes through a hole in a web e1 and such valve (4 is hollow and is formed with holes a at the lower part to form communication between one side and the other of the web a. The end 0 of the leg 12 is coned or otherwise formed to act in combination with the valve a. The rod e is also in this case formed with a forked lower end a to fit outside the valve-body a and is connected thereto by pins or trunnions a", passed through the holes in the fork e and screwed into the valve-body a.

The action of the arrangement shown at Figs. 1 to 4: is as follows: When used in connection with an incubator worked by gas or steam, the looped hollow rod?) 19 Wis placed in the liquid-container, as shown in Fig. 7, where it will expand and close off at any desired temperature, according to the adjustment of the outlet-valve a By the expansion of theleg b, transmitting its expansion by means of the lever d to the leg I) in an in-.

creased ratio, according to the position of the fulcrum or axle d of said lever, and by the expansion of the leg 19 I obtain a large ratio of expansion, which on a given temperature being reached acts more or less to close the outlet-valve a and thus regulate the supply of steam or gas. The apparatus represented at Figs. 1 to 4 may, however, be otherwise applied, and it may be used as a steam-trap. In this latter case the inlet-opening a is connected to the lowest part of a steam-pipe, as usual, and the valves are so adjusted that when'the apparatus is filled with condensation-water the outlet-valve a will open to permit of its discharge, but on steam entering it the outlet-valve a will close.

The modified construction of apparatus shown at Fig. 5 may be used in cases where the steam or gas is not required to pass through the rod 12 b 29 In this case thesaid rod is solid, and the steam or gas passes directly from the inlet a to the outlet a through the passage a, formed in the valve body a. Otherwise the action of this latter modification is similar to that of the apparatus shown 4 I ing ina stuffing-box and acts as the outletvalve seat, a comparatively non-expanding rod attached at one end to the valve-body, and a lever attached at each end to trunnions fixed on the legs of the expansion-rod near their junction with the flattened loop part thereof and having its fulcrum at the upper end of the comparatively non-expanding rod, substantially as herein set forth and for the .purpose stated.

2. In a heat-regulating device capable of being used also as a steam-trap and steamradiator, the combination with a'valve-body having an adjustable inlet-valve and an adjustable outlet-valve, of a looped expansionrod formed with two legs connected together by a flattened loop-shaped part, one of said legs being fixed rigidly to the valve-body, while the end of the other leg is capable of sliding in a stuffing-box and acts as the outlet-valve seat, a comparatively non-expandin g rod attachedat one end to the valve-body, and a lever attached at each end to trunnions fixed on the legs of the expansion-rod near their junction with. the flattened loop part thereof and having its fulcrum at the upper end of the comparatively non-expanding rod and nearer to the fixed leg than to the sliding leg thereof, substantially as herein set forth. In testimony whereof I affix my signature in presence of two Witnesses.

FREDERICK LAMPLOUGH. Witnesses:

B. J. B. MILLS, CLAUDE K. MILLs. 

